accumulo-notifications mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Josh Elser (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (ACCUMULO-2486) Use covariant return types in SKVI.deepCopy
Date Sat, 04 Apr 2015 03:03:33 GMT

     [ https://issues.apache.org/jira/browse/ACCUMULO-2486?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Josh Elser updated ACCUMULO-2486:
---------------------------------
    Fix Version/s:     (was: 1.7.0)
                   1.8.0

> Use covariant return types in SKVI.deepCopy
> -------------------------------------------
>
>                 Key: ACCUMULO-2486
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-2486
>             Project: Accumulo
>          Issue Type: Improvement
>            Reporter: Mike Drob
>             Fix For: 1.8.0
>
>
> Starting with Java 5, subclasses with method overrides can declare covariant return types.
In general, I believe that we want to do this, as it provides stronger type guarantees with
not a lot of extra cost.
> Example:
> {code}
> public interface SortedKeyValueIterator {
>       SortedKeyValueIterator deepCopy(IteratorEnvironment env);
> }
> public interface InterruptibleIterator extends SortedKeyValueIterator {
>       @Override
>       InterruptibleIterator deepCopy(IteratorEnvironment env);
> }
> {code}
> I believe this change will be fully backwards compatible with the existing APIs.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message